Universal joint.



E. D. BETTS.

UNIVERSAL JOINT. APPLICATION FILED JUNE 278. 19x5.

Patented June 27, 1916.

' To all whom it may concern:

i 4. is a view of the" inner end of a detached sis EVERETT 1). BETTS, or

' ED STATES PArarer caries.)

DETROIT, MICHIGAN, ASSIGNOR or 'rwowrr'rrrs 'ro WALTER I.-

OESCHGER,-OF DETROIT, ICHIGAN.

UNIVERSAL Jom'r;

Be it known that I, Evans'r'r D. Burrs, a subject of theLKing of England, residing at Detroit, in the-county of. Wayne and State'of -llriichigan..-'-h ave invented certain new and useful-Improvements in Universal- Joints, of which the-following is a specification, reference being had therein to the accompanying drawings.

This invention relates touniversal joints, and the primary object of my invention is to provide a universal joint wherein driving and driven members are articulated to revolve with one member disposed at an angle to the other and withstand severe lateral stresses, without a material increase in the dimensions of the joint.

Another objectof my invention is to pro 'videa 'dust proof. sliding universal joint having provision fora supplyptoil in much greater quantities than can be fur- Specification of Letters Patent. p t t 7 1 '.,-Application meanness, 1915. sa iim. 36,679."

fiat confronting faces 6. The slot 4 is of a .12 have their fiat faces 13 engaging the nisbed by'forins of oilers nowi'n "use for such joints.

-Ano.the1 :object;of my nvention 1 3 pro- .vide va strong,-s iniple and durable universal.

joint which sh'alip'resent a large bearing surface in proportion'to' its diameterv and which also presents a neat and finished appearance, free from projectingarms on parts, which are-liable to catch the-clothing of operators, resulting in. accidents, particular-ly when thejoint is used in, connectiomwithexposed shafts of driven members.

With the above andother objects in'wiew,

invention resides in the novel construction, combination and arrangement of parts to be hereinafter described and then claimed,,and;reference will now ,be d to the drawings, in which figure 1 isfa-sidefe levation .11 the univer'sal joint, partlyfbrolcen away and partly in section Fig.2 is cross sectional. view taken on or about the 'lineI I.-.I I of Fig.1;

Fig'. 3 is a longitudinal sectional. viewof i the universal joint,partly in elevation; Fig.

driving member and Fig. is aperspective view of a detached shoe.

In the drawing, 1 denotes a cylindrical driving member and the outerend of said member is formed with a socket 2 adapted to receive a-driving shaft. The inner end of the member 1 has a longitudinal bore 3 and a longitudinal slot 4, said slot intersecting the bore 3 and providing jaws 5 with confronting faces 6 of the-driving member; concave faces 14: conforming to the periphery of the spherical body -7 and convex faces 15 engaging concave seats 16 of slide blocks17. The slide blocks 17 are'movable in the slot t against" the flat faces 6 of the driving member andsaid slide blocks are connected to' diametrically-opposed q I 1 I .75 I V inner walls of-a cylindrical casing -18-by 'set screws'19 or similar, fasteningmeans. The

casing 18 is slidable uponthedriving-memher 1 and said; casing has the inner end thereof reamed orofi'set,=as at2.0,- to provide an annular --container. f or a' packing 21.

The pacicing 21 isheld in engagement with the drivingmemberl.bya'cap 22 screwed or otherwise mountedj upon the reamed end viding clearance for the .d'rive nm'ember 8.

The outer end'of the'boreB is also enlarged of the casing. The opposite end of the cas 1 .ing- 18 is provided with aglobular-head 23 having a concentric opening .24 pro-- ing ring 28'engaging at'hreaded portion 29 of the driven member. -The packingrings 2 1 and 26 cooperate witlrthecasing 18 andthe caps 22 and 2 7 in pr'oviding a dustpro'of mclosure for the movable elements of the universal joint, besides constituting a reservoir for a lubricant which can be placed in the casing 18 through a filling opening 30 normally closed by a plug 31. By excluding dust and thoroughly lubricating the contact surfaces of the driving member 1, the spheri- I cal body 7, the shoes 12 and the sliding blocks 17, there is a minimum friction and that the strnd I Y to such changes, in size, shiip'e mdmanner an easy adjustmentof the driven member 8 relatively to the'driving member 1.

It isthought that the operation and utility of my inventionfn'iil be apparent without further description zind vhile the drawiug there is illustrated ii preferred embodiment of the ini; IitiOD, is, to be understood Y ,elein'ents are susceptible of assemblage, as ifall within the scope of the iippended-elziinis.

1. A universiiljoint con'iprisingii driving member having a longitudinal slot, iidriven memberhztving ii spherical body within the slot of said driving member, shoes on the spherical body of said drivendnemb'er,end

' 2). casing slidable on said drivingmeinher,

and lntlillililinlllgSilld shoes on the spherical body of said driven member,

2. In 3 universal joint, ii driving member, provided with it longiti-idinal slot, a driven member extending into the slot of said driving m r, Shoes on said driven member within the slot of said driving member,

blocks on said shoes, a, casing ons'aid driving -member supporting said blocks, and soap carried by said driven member and engaging said casing. I

3. A universal jointcomprising afidriving member, a driven member extending therein, shoes on said driven mei'nber'jwithiii said driving nieinbeigbloeks on said shoes within said. driving i'ne nb'er, it easing having a. sliding connection with said driving. member andsnpporting said blocks, and a cap billriedby said driven member and engaging said casing and cooperating therewith in providing an inelosure for said shoes and said blocks. 7 7

i. A universal joint compi'isin a' driving member, provided with a' longitu inal slot, a driven 'ii'ieinber having a spherical body within the slot of said driving member, a

transverse pin carried by the spherical body of said driv n member, shoes on the ends of said pin engaging the spherical body efsaid driven'member,bloekssliditble on said shoes \vithin the slot of sa d driving member, a

easing on said driving member supporting said blocks,

a packingi between said ezisin'g and. Saiddriving member, a cap on sai driven member, and a -paeking between said.

I member, it driven member slidable therein, a

casing carried by said driven-membe and slidahle on Szlld driving member, and means pro ecting inwardly from sz id casing adapted to cause rotativetcont'inuity between driving and'driven members. 7

In testimonyivhereof Iafiix my. signature in presence of twowitnesfses. 'l

I 5 EVERETT l'Vitnesses: J

-LEW1S E... FLANnnns,

G. E, MCGRAN'E.

easing with one 

